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When to plant Coreopsis in Brooks County County,

For Brooks County County, gardeners: plant Coreopsis February 19 through March 12 once soil reads 50°F.

When to Plant Coreopsis in Brooks County, GA

Brooks County, Georgia Zone 9a June

Your June gardening checklist

A quick June briefing for Brooks County, Georgia gardeners — what's urgent, what's next, and what can wait.

Avg. last frost March 5
Avg. first frost November 22
Soil temp (4") 82°F
Watering Low
Pest pressure High
Daylight 14 hrs
  1. Start harvesting coreopsis

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

Before July arrives, get these ready
  • First harvests: coreopsis

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Coreopsis (Tickseed) is a cheerful, long-blooming native perennial that produces a continuous flush of bright yellow, gold, or bi-colored daisy-like flowers from early summer well into fall. One of the most reliable cut-and-come-again bloomers in the perennial garden, it thrives in hot, dry, sunny conditions and poor soil where many competitors struggle. An invaluable nectar source for native bees and butterflies, and a butterfly host plant for several species.

Brooks County, Georgia is in USDA Zone 9a. The average last spring frost is March 5 and the first fall frost is November 22, giving you a growing season of approximately 262 days.

At an elevation of 425 feet, Brooks County receives approximately 48.9 inches of rainfall annually with predominantly clay loam soil. Summer highs average 93°F, providing good warmth for Coreopsis during the growing season. Clay soil retains moisture well for Coreopsis, but amend with compost to improve drainage and prevent root rot.

Perennial Blooms in Summer Pollinator-friendly Deer-resistant Good for cutting
Brooks County, GA (Zone 9a) Long season
262 days
Last Spring Frost March 5
262 growing days
First Fall Frost November 22

Brooks County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.6

Drainage

Well Drained

Coreopsis Planting Risk Windows

Early Start (70% safe) ✓ Fits season (72 days to spare)
Start indoors: Dec 27 Transplant: Feb 7 🌸 Bloom: Apr 4 – Sep 5
Recommended (50%) ✓ Fits season (66 days to spare)
Start indoors: Jan 8 Transplant: Feb 19 🌸 Bloom: Apr 16 – Sep 17
Safe Start (90%) ✓ Fits season (70 days to spare)
Start indoors: Jan 29 Transplant: Mar 12 🌸 Bloom: May 7 – Oct 8

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Soil Compatibility in Brooks County

How your county's soil matches Coreopsis's growing requirements.

Soil pH

Your soil pH (5.7–6.6) is within Coreopsis's preferred range (5.5–7.5).

Soil Texture

The clay loam soil in Brooks County is excellent for Coreopsis — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Coreopsis prefers dry conditions but your soil drains poorly. Use raised beds or mounded rows to prevent root rot.

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Coreopsis.

How to Plant Coreopsis

0.1"
Planting Depth
18"
Between Plants
24"
Between Rows

Succession Planting Coreopsis

5
successive plantings in your 262-day season

Sow every 6.9 weeks. Last sowing by Sep 03 to harvest before frost.

Coreopsis Water Budget

Plant needs
0.5″/week
Rainfall provides
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Coreopsis

Coreopsis needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Coreopsis Needs Rainfall You Supplement Action
Jan 4.4" 0" ❄️ Dormant
Feb 3.6" 0" ❄️ Dormant
Mar 2.2" 4" 0" ✅ Rainfall sufficient
Apr 2.2" 3.9" 0" ✅ Rainfall sufficient
May 2.2" 4.3" 0" ✅ Rainfall sufficient
Jun 2.2" 4" 0" ✅ Rainfall sufficient
Jul 2.2" 5.1" 0" ✅ Rainfall sufficient
Aug 2.2" 5" 0" ✅ Rainfall sufficient
Sep 2.2" 4.1" 0" ✅ Rainfall sufficient
Oct 2.2" 2.8" 0" ✅ Rainfall sufficient
Nov 2.2" 3.7" 0" ✅ Rainfall sufficient
Dec 4.1" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Brooks County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Coreopsis Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Coreopsis needs ~1,382 GDD — county provides 5,174 GDD Excellent fit

Coreopsis Planting Timeline — Brooks County, GA

Coreopsis Planting Calendar

Activity When Date Range
Start Indoors January 8 Jan 8 – Jan 22
Transplant Outdoors February 19 Feb 19 – Mar 5
Direct Sow February 19 Feb 19 – Mar 12
Bloom April 16 Apr 16 – Sep 17

Plant 0.1" deep · 18" apart · Rows 24" apart

Month-by-Month Timeline

MonthActivities
January Start Indoors
February Transplant Outdoors Direct Sow
March Transplant Outdoors Direct Sow
April Bloom
May Bloom
June Bloom
July Bloom
August Bloom
September Bloom
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

60–80 days

🧪 Soil pH

Needs 5.5–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 9a

📆 Growing Season

262 days in Brooks County

Growing Tips for Coreopsis in Brooks County

Direct sow Coreopsis outdoors after March 05 in Brooks County when soil has warmed and frost danger has passed.

With Brooks County's clay soil (28% clay), work in 3-4 inches of compost before planting Coreopsis. Avoid tilling when soil is wet to prevent compaction.

Common pests for Coreopsis in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 8–10 weeks before last frost or direct sow after last frost. Seeds germinate easily without stratification. Thrives in poor to average, well-drained soil — rich soil promotes foliage over flowers. Drought tolerant once established; overwatering is the most common mistake. Deadhead spent blooms to maintain continuous flowering through the season. Shear plants by one-third in midsummer for a fresh flush of late-season blooms. Year 2+ plants bloom most heavily. Divide every 2–3 years in early spring to rejuvenate crowded clumps.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Coreopsis in Brooks County, GA?

Brooks County is in Zone 9a with an average last frost of March 5. Plan your Coreopsis planting based on this frost date — see the calendar above for exact timing.

What planting zone is Brooks County, GA?

Brooks County, Georgia is in USDA Hardiness Zone 9a. The average last spring frost is March 5 and first fall frost is November 22.

When should I plant Coreopsis in Brooks County County, ?

In Brooks County County, , plant Coreopsis after the last frost (around March 5) and before the first frost (around November 22). Best results when soil holds above 50°F.

What growing zone is Brooks County County, for Coreopsis?

Brooks County County sits in USDA Zone 9a. Coreopsis grows reliably in zones 3a through 9b, so it's a good fit here.

Can Coreopsis grow in Brooks County County's climate?

Yes — Coreopsis grows well in Brooks County County's temperate climate. Brooks County County averages a 262-day frost-free season, with last frost around March 5 and first frost around November 22.

🌱

Your Brooks County Garden Planner — Free

A 22-page printable planner built for Brooks County (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Brooks County, GA. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.